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<!DOCTYPE html>
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<html>
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<head>
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    <title>Client coordinates Example</title>
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    <script type="text/javascript" src="/upload/files/201702/EventUtil.js"></script>
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</head>
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<body>
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    <div id="myDiv" style="background-color:red;height:10000px;width:100px">Click me</div>
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    <script>
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        var div = document.getElementById("myDiv");
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        EventUtil.addHandler(div, "click", function(event){
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            event = EventUtil.getEvent(event);
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            var pageX = event.pageX,
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                pageY = event.pageY;
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            if (pageX === undefined){
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                pageX = event.clientX + (document.body.scrollLeft || document.documentElement.scrollLeft);
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            }
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            if (pageY === undefined){
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                pageY = event.clientY + (document.body.scrollTop || document.documentElement.scrollTop);
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            }
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            alert("Page coordinates: " + event.pageX + "|" + pageX + "," + event.pageY + "|"+pageY);      
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        });
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​
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    </script>
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</body>
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</html>
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